fix(unixode.sty): remove \left and \right from angle brackets
fix(unixode.sty): remove \left and \right from angle brackets

soonhokong/lean-tutorial,Hodapp87/cs6460_project,soonhokong/lean-tutorial,avigad/tutorial,leanprover/tutorial,avigad/tutorial,fpvandoorn/tutorial,leanprover/tutorial,cjmazey/fork_leanprover_tutorial,fpvandoorn/tutorial,avigad/tutorial,soonhokong/lean-tutorial,fpvandoorn/tutorial,cjmazey/fork_leanprover_tutorial,leanprover/tutorial,Hodapp87/cs6460_project,cjmazey/fork_leanprover_tutorial,Hodapp87/cs6460_project